# Thread: Im not sure if I have the correct answer. HELP!!

1. ## Im not sure if I have the correct answer. HELP!!

Solve by completing the square:

x^2 + 8x + 3=o

x^2 + 8x + 16 -13=0
(x+4)^2-13=0
(x+4)^2=13
x1=sqrt13 - 4
x2=-sqrt13 - 4

or

x^2 + 8x + (4)^2 = -3 + (4)^2
(x+4)^2 = -3 + 16
(x+ 4)^2 = 13
x = + - (-4) sqr 13

Are any of these correct?

2. The first one is right